Thank you for viewing. SME Tonearm Spacer Thickness: 5mm *Image 1 is an example of installation and is not included. ◆Size: See image For adjusting the dimensions of the SME slide base ◆Material PLA Polylactic acid *Environmentally friendly biodegradable material ◆Condition: See image Due to 3D printing, layer lines and nozzle marks may occur. Please understand. ◆How to use As shown in Image 1, it can be attached to the SME 3012 arm base. ◆Included items Spacer only *The items in the reference image are not included. *Please ask for details in the comments. If you don't have a spacer, Please take this opportunity to try it. Also available: SME Tonearm Spacer PLA Thickness 10mm SME Tonearm Spacer PLA Thickness 15mm